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