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