One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9,11,16)(4,8)(5,7)(6,10,14,12)(13,15)(17,18)(19,28,31,23)(20,24)(21,26,29,25)(22,27)(30,41,44,35)(32,36,42,37)(33,39,43,38)(34,40)(45,46,48,47)(1,3)(2,6)(4,12)(5,11)(7,14)(8,16)(9,15)(10,13)(17,19,29,42,22,32,21,31)(18,23,26,36,27,37,25,28)(20,30,43,48,34,45,33,44)(24,35,39,46,40,47,38,41)(2,7)(6,14)(8,15)(9,16)(17,20,22,34)(18,24,27,40)(19,30,32,45)(21,33,29,43)(23,35,37,47)(25,38,26,39)(28,41,36,46)(31,44,42,48)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.