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