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