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