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