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