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