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