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