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