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