Three parts, three lines
A college graduation rarely fits on one card. There is the ceremony itself, often on a campus a drive away; the degree worth naming properly; and whatever happens after โ a dinner, an open house, a night that goes long. Good wording separates those cleanly so family in another city know exactly what they are being invited to and when.
The samples below are phrased for that three-part day. Keep the graduate's name and the degree first, give the ceremony its own time and place, and let the evening be a separate line. End with a reply, because a commencement with travelling relatives is precisely the event that needs a real headcount early.