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