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