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