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)(17,18,22,20)(19,23,25,26)(21,28,29,24)(27,32,31,30)(33,34)(35,39)(36,38)(37,41)(40,43)(42,46)(44,45)(47,48)(2,5)(6,8)(10,14)(11,16)(19,25)(23,26)(27,31)(30,32)(33,35,38,43)(34,39,36,40)(37,42,45,48)(41,46,44,47)(9,11,13,16)(10,15,14,12)(17,19)(18,23)(20,26)(21,27)(22,25)(24,30)(28,32)(29,31)(33,35)(34,40)(36,39)(37,42)(38,43)(41,47)(44,46)(45,48)(1,2)(3,6)(4,5)(7,8)(9,12,13,15)(10,16,14,11)(17,20,22,18)(19,26,25,23)(21,28,29,24)(27,32,31,30)(33,36,38,34)(35,40,43,39)(37,44,45,41)(42,47,48,46)(1,3)(2,6)(4,7)(5,8)(9,10)(11,15)(12,16)(13,14)(17,21,22,29)(18,24,20,28)(19,27,25,31)(23,30,26,32)(33,37,38,45)(34,41,36,44)(35,42,43,48)(39,46,40,47)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.