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