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