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