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