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