One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,6,4)(9,10,13,11)(12,15,16,14)(17,18,22,25)(19,26,23,20)(21,29,30,24)(27,28,31,32)(1,3)(2,4)(5,6)(7,8)(10,11)(14,15)(17,19,22,23)(18,20,25,26)(21,27,30,31)(24,28,29,32)(1,4)(2,3)(5,8)(6,7)(9,11,13,10)(12,15,16,14)(17,20)(18,23)(19,25)(21,28)(22,26)(24,31)(27,29)(30,32)(1,4,5,8)(2,6,7,3)(9,12,13,16)(10,14,11,15)(17,19)(18,20)(21,27)(22,23)(24,28)(25,26)(29,32)(30,31)(1,4)(2,3)(5,8)(6,7)(17,20)(18,23)(19,25)(21,28)(22,26)(24,31)(27,29)(30,32) involution — undirected(1,3)(2,4)(5,6)(7,8)(17,21)(18,24)(19,27)(20,28)(22,30)(23,31)(25,29)(26,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.