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