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