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