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