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