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