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