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