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