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