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