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