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