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