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)(17,18,22,26)(19,23,28,36)(20,25,31,40)(21,24,33,27)(29,35,41,46)(30,37,42,34)(32,38,44,39)(43,47,48,45)(1,2,5,6)(3,8,4,7)(9,10)(11,15)(12,14)(13,16)(17,19)(18,23)(20,29)(21,30)(22,28)(24,37)(25,35)(26,36)(27,34)(31,41)(32,43)(33,42)(38,47)(39,45)(40,46)(44,48)(9,11,12,16)(10,13,14,15)(18,24)(19,28)(21,33)(23,34)(25,38)(26,27)(29,41)(32,44)(35,45)(36,37)(39,40)(46,47)(1,3,5,4)(2,7,6,8)(11,16)(13,15)(17,20)(18,25)(19,29)(21,32)(22,31)(23,35)(24,38)(26,40)(27,39)(28,41)(30,43)(33,44)(34,45)(36,46)(37,47)(42,48)(1,4,5,3)(2,7,6,8)(10,14)(13,15)(18,26)(19,28)(20,31)(24,27)(30,42)(32,44)(35,46)(45,47)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.