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