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