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