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