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