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