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