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