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