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