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)(11,16)(12,14)(13,15)(17,18,22,25)(19,23,21,30)(20,27,29,31)(24,28,32,26)(2,5)(6,8)(9,11,13,12)(10,14,15,16)(17,19,22,21)(18,23,25,30)(20,28,29,26)(24,27,32,31)(11,12)(14,16)(17,20)(18,24)(19,26)(21,28)(22,29)(23,31)(25,32)(27,30) involution — undirected(1,3,4,7)(2,6,5,8)(9,12,13,11)(10,14,15,16)(20,29)(24,32)(26,28)(27,31)(11,12)(14,16)(20,29)(24,32)(26,28)(27,31) 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.