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