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