vSize[x_]:=Lookup[\[LeftAssociation]Automatic->0.2,"BackgroundBlack"->0.2,"BackgroundBlue"->0.2,"BackgroundGold"->0.2,"BackgroundGreen"->0.2,"BasicBlack"->0.2,"BasicBlue"->0.2,"BasicGold"->0.2,"BasicGreen"->0.2,"ClassicDiagram"->0.4,"DiagramBlack"->0.4,"DiagramBlue"->0.4,"DiagramGold"->0.4,"DiagramGreen"->0.4`,"DynamicHighlight"->0.1`,"LargeGraph"->Automatic,"LargeNetwork"->0.2,"Prototype"->0.2,"SimpleLink"->0.2,"SmallNetwork"->0.4,"ThickEdge"->0.05,"Vintage"->Automatic,"VintageDiagram"->0.4\[RightAssociation],x,Automatic];

graphs =WheelGraph[4,GraphStyle->#,VertexSize->vSize[#],PlotLabel->Style[#,Gray],ImageSize->{125,125}]&/@GraphElementData["GraphStyle"];

Grid[Partition[graphs,4,4,{1,1},{}],Frame->All,FrameStyle->LightGray]