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