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