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