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