It says right on the acceptance pages what a faculty contact is:
Faculty Contact
You will be asked to indicate your Faculty Contact on the form.
The "Faculty Contact" is the person at your school who will be assisting you while you are on your internship. Because who this person is varies from school to school and even from student to student, we can only provide you with general ideas of who this person would be for you.
Some students list their academic advisor. Others list a person from their school's internship/co-op/experiential education office. Some will list one of their professors.
This person should be able to verify that you are currently (a) enrolled in school, (b) that you are either a Full-Time or Part-Time student, and (c) that you are in good academic standing with your school (not on any sort of academic probation).
In addition, if someone from your school spoke during the presentation, you may want to check with them as well for direction-- this would not be one of the student campus representatives.
Hopefully this gives you some indication as to who this person would be for you.