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