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