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)(17,18,24,27,23,20,22,28)(19,25,29,32,21,26,30,31)(1,2,5,6)(3,7,4,8)(9,10)(11,15)(12,14)(13,16)(17,19)(18,25)(20,26)(21,23)(22,30)(24,29)(27,32)(28,31)(1,3,5,4)(2,7,6,8)(9,11)(10,13)(12,16)(14,15)(17,20,23,18)(19,25,21,26)(22,28,24,27)(29,31,30,32)(1,3,5,4)(2,8,6,7)(11,16)(13,15)(17,21,23,19)(18,26,20,25)(22,29,24,30)(27,31,28,32)(1,4,5,3)(2,8,6,7)(10,14)(13,15)(17,22,23,24)(18,27,20,28)(19,29,21,30)(25,31,26,32)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.