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