How can I help a Nevada employee struggling to find affordable housing?

Circumstances vary from person to person, but here is some general guidance on where to start.

Nevada Housing Division. This agency offers a free service that locates low income housing for Nevada residents. Their general phone number is 877-428-8844. The contact info for the Las Vegas office is:
3300 W Sahara Blvd, Ste 300
Las Vegas, NV 89102
Phone: 702)486-7220
Fax: (702)486-7227
Toll Free: (888)486-8775
Your employee might also want to look into the Temporary Assistance for Needy Families (TANF) program, which is administered by the state Welfare office. Their phone number is 702-486-1646.
The state of Nevada has a website call "Access Nevada," which is a portal for residents to apply for all types of state benefits. It may be worth the employee's time to explore and set up an account, if they have not done so already. The site has an instant survey that they can use to see which benefits they might qualify for. They can also call (800) 992-0900 instead of going online.
The 2-1-1 Resource Hotline (run by the United Way), might be able to point them in the right direction for any other needs they might have.