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