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