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