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