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