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