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