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