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