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