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