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)(11,15)(12,14)(13,16)(17,18,23,21,22,25,20,29)(19,24,26,31,28,32,30,27)(1,3)(2,5)(4,8)(6,7)(11,16)(13,15)(17,19)(18,24)(20,30)(21,31)(22,28)(23,26)(25,32)(27,29) involution — undirected(2,6)(3,8)(9,11,12,16)(10,13,14,15)(17,20,22,23)(18,21,25,29)(19,26,28,30)(24,27,32,31)(2,6)(3,8)(10,14)(13,15)(17,21,23,25,22,29,20,18)(19,27,26,24,28,31,30,32)(2,6)(5,7)(19,28)(24,32)(26,30)(27,31) 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.