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