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