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