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