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