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