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