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