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