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