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