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