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