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