The prayer area is in the UT Dallas Student Union on the ground floor. There are separate praying areas for men and women and one can always find Muslims praying prayers in jamaath at the time of prayers. The restrooms are also close by and it is very normal for Muslims to do wudu there with washing the feet in the sink. There has been a proposal to also make a foot wash in that bathroom. All the prayers except Fajr are prayed here. If it is your first time to the campus, you can ask around for the Student Union. In the Student Union, ask around for the reflection rooms.