Both IT and Computer Science are very broad fields. It all depends what your emphasis is. Although both fields are very different, but there are some over lap depending on the position, as its not uncommon for Software Engineers to work in IT developing in-house enterprise applications.
Trending hot positions for Computer Science, is mobile app development, UX , Web Development. A lot of positions in IT has died off that was golden in the late 90s and early 2000s as a lot of lower end jobs have been off-shored. The more higher end of the spectrum, Network Enginer/Architect CCIE, Network Security/Cyber Defense, Software Defined Networking, Linux, Database Management, Computer Analyst and Consultants are currently hot trending. Cloud computing has dramatically changed the way we do things.