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