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