Hello!
I'm one of the student ambassadors here at Coventry University.
As stated above, I'd recommend using your university address, again this gives employers and idea as to how far away you are from them as well as be able to add this to your records to send you any mail etc if they need to.
It is easy enough to change if and when you need to, so you don't need to worry about having a problem changing it over when the time comes.
Kind regards,
Courtney H