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