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