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