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