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