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