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