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