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