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)(12,14)(15,16)(17,18,23,24,22,28,21,27)(19,25,34,36,30,39,31,40)(20,26,35,37,33,42,32,41)(29,38,45,46,44,47,43,48)(1,3,4,7)(2,5,6,8)(9,10)(11,15)(12,14)(13,16)(18,24)(20,32)(21,23)(25,36)(27,28)(29,43)(31,34)(33,35)(37,41)(39,40)(44,45)(46,48)(2,6)(5,8)(9,11)(10,13)(12,16)(14,15)(17,19)(18,25)(20,29)(21,31)(22,30)(23,34)(24,36)(26,38)(27,40)(28,39)(32,43)(33,44)(35,45)(37,46)(41,48)(42,47) involution — undirected(11,16)(13,15)(17,20,23,35,22,33,21,32)(18,26,24,37,28,42,27,41)(19,29,34,45,30,44,31,43)(25,38,36,46,39,47,40,48)(10,14)(13,15)(19,30)(25,39)(29,44)(31,34)(36,40)(38,47)(43,45)(46,48) involution — undirectedA 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.