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