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