Louisville Athletics provided pictures from the commencement:
Alexander tallied 77 total tackles, 15 passes defended, seven interceptions and a forced fumble in 29 games across three seasons with the Cardinals.
The Packers selected the 21-year-old cornerback with the 18th overall pick in the NFL draft last month. He was the second corner taken after Ohio State's Denzel Ward.
Alexander will likely compete with Kevin King for a starting spot opposite Tramon Williams in Green Bay's base defense.