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