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