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