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