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