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)(17,18,21,24)(19,22,27,31)(20,23,28,32)(25,29,26,30)(1,3)(2,6)(4,7)(5,8)(9,10)(11,14)(12,13)(15,16)(17,19)(18,22)(20,26)(21,27)(23,30)(24,31)(25,28)(29,32) involution — undirected(1,2,5,4)(3,7,8,6)(17,20)(18,23)(19,25)(21,28)(22,29)(24,32)(26,27)(30,31)(1,3)(2,6)(4,7)(5,8)(9,11,12,15)(10,14,13,16)(17,18)(19,22)(20,23)(21,24)(25,29)(26,30)(27,31)(28,32)(1,4,5,2)(3,7,8,6)(17,20)(18,23)(19,26)(21,28)(22,30)(24,32)(25,27)(29,31)(1,3)(2,7)(4,6)(5,8)(17,19)(18,22)(20,25)(21,27)(23,29)(24,31)(26,28)(30,32) 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.