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