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