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