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