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