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