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