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