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