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