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