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