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