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