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