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