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