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