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