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