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