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