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