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