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