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