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