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