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