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