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