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