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