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