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