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