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