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