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