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