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)(11,15)(12,13)(14,16)(17,18,23,27)(19,28,29,24)(20,25,31,30)(21,22,26,32)(1,3,6,4)(2,7,5,8)(10,13)(14,15)(19,29)(20,31)(24,28)(25,30)(9,10)(11,14)(12,13)(15,16)(17,19,23,29)(18,24,27,28)(20,26,31,21)(22,30,32,25)(2,5)(7,8)(9,11)(10,14)(12,16)(13,15)(17,20)(18,25)(19,26)(21,29)(22,24)(23,31)(27,30)(28,32) involution — undirected(1,4,6,3)(2,8,5,7)(17,21,23,26)(18,22,27,32)(19,20,29,31)(24,30,28,25)(1,5,6,2)(3,8,4,7)(17,22)(18,26)(19,30)(20,28)(21,27)(23,32)(24,31)(25,29)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.