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