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