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