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