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