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