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)(19,22)(20,25)(21,26)(23,28)(24,29)(27,31)(30,32)(33,34,38,40)(35,41,43,36)(37,45,46,39)(42,44,48,47)(2,5)(6,8)(9,10,13,12)(11,15,16,14)(18,19)(21,29)(23,25)(27,30)(37,46)(39,45)(42,48)(44,47)(1,2,4,5)(3,6,7,8)(9,11,13,16)(10,14,12,15)(17,19,22,18)(20,23,28,25)(21,24,29,26)(27,32,30,31)(33,35,38,43)(34,36,40,41)(37,42,46,48)(39,44,45,47)(1,3,4,7)(2,6,5,8)(9,12,13,10)(11,15,16,14)(17,20,22,28)(18,23,19,25)(21,30,29,27)(24,32,26,31)(33,36)(34,35)(37,44)(38,41)(39,42)(40,43)(45,48)(46,47)(17,21)(18,24)(19,26)(20,27)(22,29)(23,31)(25,32)(28,30)(33,37,38,46)(34,39,40,45)(35,42,43,48)(36,44,41,47)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.