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