Well after reading all of the posts, I can tell you what I have done or heard works.
Guineas...are notorious rattlesnake killers
Sulphur as a perimeter works...according to my grandfather, they will not cross it because it burns their bellies. We had a perimeter around our bunny house and never had a loss. Of course he sang to them also (long story).
Glueboards and/or a snake fence (instructions below)
I would be searching for a den or nest...It sounds like you have a family nearby and most likely on the property near the house.
Are you sure it is a diamondback? Their venom is a neurotoxin.
There are 7 species of poisonous snake found in New Mexico. Here is the info on them...
The Rock Rattlesnake occurs in isolated mountain ranges in Southern New Mexico. This snake may be found in pine-oak forests, but mostly inhabits mountains with rugged, rocky terrain. It is variable in color and may be brown-black, greenish, or gray.
The Western Diamondback Rattlesnake is found throughout much of New Mexico, and is the species most often seen. It lives in flat plains and rocky canyons, from grassland deserts to pine-oak forests. The western diamondback is one of the largest of all rattlesnake species and the largest found in New Mexico (up to 6 ft long). Their color is most often gray-brown, although color often depends on the matching background colormany New Mexico snakes have a reddish to pinkish-gray color. This species has black and white rings on its tail, so it is commonly called the coon-tail rattlesnake.
The Western (Prairie) Rattlesnake is distributed across New Mexico, much of the western U.S., and into Canada. In eastern New Mexico, it is often called sand rattler and lives in a variety of habitats, from grassland desert to pine-oak forest. This species is generally more active after dark, except at high altitudes. Western prairie rattlesnakes are often greenish-gray or pale brown, with a series of light-colored rings on the tail that darken with maturity.
The Mojave Rattlesnake is found in extreme Southern New Mexico, although it is more common in southern California Nevada, Arizona and Texas and is more widely distributed in the Chihuahua Desert than the Mojave Desert. It lives in desert or low grassland habitats, often on flat terrain. The Mojave rattlesnake is often greenish-gray or olive green, with a white belly. Its venom is highly potent.
The Black-tailed Rattlesnake is distributed in southwestern and central New Mexico. It lives mostly in rocky mountainous areas, and is found occasionally in lower desert habitats. It is often colored a greenish or steel gray (but can be sulphur yellow or rust), with a dark brown or black tail. Generally considered mild mannered, this rattlesnake can nonetheless be quick to rattle and raise its head. It has been seen several feet off the ground in trees.
The Massasauga is distributed across southern, central, and eastern New Mexico where it occupies desert grassland, often in very sandy areas. This snake is relatively small (less than 4 ft long) and pale brown, and generally has pairs of spots on its head. Although not usually fatal to humans, bites from this species can be extremely painful.
The Ridge-nose Rattlesnake is listed by the U.S. Fish and Wildlife Service as a threatened species in New Mexico. It inhabits only a small part of the southwestern boot heel of the state, living in pine-oak woodlands, open grassy hillsides, and humid canyon bottoms. Its color is reddish brown, yellowish brown, or gray. Ridge-nose rattlesnakes are generally active day or night and tend to have a mild temperament.
Coral Snake
The Arizona coral snake is found in extreme southwest Catron County and western Hidalgo and Grant counties. Although coral snakes rarely bite, their venom is highly poisonous and they should not be handled. The Arizona coral snake has a black nose and is brightly colored with broad alternating rings of red and black, separated by narrower rings of white or yellow. These markings encircle the body, although they are less bright on the belly.
In New Mexico, other snakes with similar markings are the New Mexico milk snake, Arizona mountain king snake, and the long-nosed snake. The narrower red bands are bordered by black on the New Mexico milk snake and Arizona mountain king snake, while the Arizona coral snake has broad red bands with yellow borders. The long-nosed snake is pale compared to the Arizona coral snake, with stripes that do not extend around the body and white spots on the side of the snakes black bands.
An easy way to determine whether a red, yellow, and black snake is a coral snake is to remember that red touches yellow on a coral snake, and red touches black on non-poisonous species.
The old rhyme "Red touches yellow I'm a bad fellow, Red touches Black I'm alright"
Here is some info that may help also:
Snakes often live in cool, dark places where food is abundant. Likely places to find snakes around homes include:
Firewood or haystacks directly on the ground.
Old lumber or junk piles.
Gardens and flower beds with heavy mulch.
Untrimmed shrubs and shrubs growing next to a foundation.
Unmowed and unkempt lawns, abandoned lots, and fields with tall vegetation.
Pond and stream banks where there is abundant debris or trash.
Cluttered basements and attics with rodent, bird, or bat problems.
Feed storage areas in barn haylofts where rodents may be abundant.
Inside a home they can be found in places such as:
Under sinks, under sub-flooring, near water heaters and in any area where there is stacked furniture or items.
Here is some info on building a snake fence if that is possible...
Construct snake-proof fences of 1/4 hardware cloth at least 36 wide. Bury the lower 6 underground, and slant the fence outward at a 30° angle. To make the fence more sturdy, place supporting stakes inside the fence and attach wires from the fence to the stakes. Make sure all gates fit tightly; they should open to the inside because of the outward slope of the fence. Be sure to keep grass and weeds around the fence mowed close to the ground to prevent snakes from using them to crawl over the fence.
Here is how to construct a glueboard for to catch them...
Another effective method of capturing snakes inside a home, under porches, in crawl spaces, or under mobile homes is to use a glueboard purchased from an agriculture supply or hardware store. Most small snakes can be captured using a single glueboard placed against a wall, away from pipes or other objects a snake could use for leverage to escape.
To capture larger snakes, make a large glueboard with purchased glueboards. Construct the trap using a 16 x 24 piece of 1/4 plywood. Drill a 3/4 hole in one comer of the board. When you need to remove the board, use a hook on the end of a long stick to grab the comer through the hole. Fasten or securely glue two to four glueboards along one side of the plywood board. This type of trap, when placed against a wall, is capable of capturing snakes up to 5 or 6 ft long.
Use glueboards only indoors or under structures where children, pets, and other wildlife cannot reach them; the glue is quite messy and hard to remove. Use common cooking or vegetable oil to remove animals from the glue. Once the unwanted guests have been removed, be sure to close any holes or entrances so the snakes do not return.
Goodluck with them.
It sounds amazing! 
