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