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