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