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