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