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