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