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