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