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