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