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