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