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