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