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