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