One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,8,6,4)(9,10,13,12)(11,15,16,14)(17,18,22,24)(19,23,27,30)(20,28,29,25)(21,26,31,32)(1,3)(2,4)(5,6)(7,8)(9,11,13,16)(10,14,12,15)(17,19)(18,23)(20,26)(21,25)(22,27)(24,30)(28,31)(29,32)(1,4,5,8)(2,6,7,3)(9,10,13,12)(11,14,16,15)(18,24)(19,27)(25,28)(26,32)(1,4)(2,3)(5,8)(6,7)(9,10,13,12)(11,14,16,15)(17,19)(18,23)(20,26)(21,25)(22,27)(24,30)(28,31)(29,32)(1,3)(2,4)(5,6)(7,8)(9,12,13,10)(11,15,16,14)(17,20,22,29)(18,25,24,28)(19,26,27,32)(21,30,31,23)(17,21)(18,26)(19,25)(20,23)(22,31)(24,32)(27,28)(29,30) 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.