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