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)(11,16)(12,15)(13,14)(17,18,20,22)(19,23,24,21)(25,26,29,27)(28,31,32,30)(2,3)(6,7)(9,11,14,12)(10,15,13,16)(17,18,20,22)(19,21,24,23)(25,26,29,27)(28,30,32,31)(4,8)(6,7)(10,13)(15,16)(17,18)(19,21)(20,22)(23,24)(25,27,29,26)(28,31,32,30)(1,3,5,2)(4,6,8,7)(9,12,14,11)(10,15,13,16)(17,18)(19,21)(20,22)(23,24)(25,28,29,32)(26,30,27,31)(1,4)(2,6)(3,7)(5,8)(9,13,14,10)(11,16,12,15)(17,19,20,24)(18,21,22,23)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.