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