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