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