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