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