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