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