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