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