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