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