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