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