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