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