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