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