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