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