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