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