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