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