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