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