Catholic colleges are centered around their faith and the development of the whole person into a likeness of Christ. Part of that process comes with instilling a complete education that deepens the student's understanding of every subject as part of God's creation and the story of salvation throughout history.
This can be seen in more obvious ways, like a religion or philosophy course, where the focus of the subject itself is the study of God, the faith, and how we think and perceive of his creation. It can also take the form of discussion in a literature or biology class as to how the subject matter points to our creator. This is not necessarily a guarantee in every class, and it will vary by school, subject, and professor.
Other ways that Catholic colleges incorporate faith would be mass, chapels, bible studies, and more like that. For more specific information on what ways a college incorporates faith into its education, check with the admissions team or the student life section of the website of the school(s) you are interested in.