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