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