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