If you come by train, please get down at Khurda Road station and take an auto to Xavier University Bhubaneswar (XUB). It's around 5-6 Kilometres and the auto guys normally ask for Rs. 100/-. You also may get shared auto sometimes to come to the campus.
If you are travelling by flight, please ask for Xavier University Bhubaneswar and any of the cabs (OLA, UBER) will come to the campus. From the airport, the campus is around 11-12 kilometres.