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