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