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