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