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