Color Specified Edges and Vertices

You can specify a default color using blank pattern _ -> color or just color first in the list followed by exceptions as follows :

VertexStyle -> {Lighter[Yellow, 1 - (2/3)^4], 4 | 6 -> Lighter[Lighter[Red]]}

EdgeStyle -> {Blue,   1\[DirectedEdge] 6 | 6\[DirectedEdge] 9 -> Red}

alternatively

VertexStyle -> {_ -> Lighter[Yellow, 1 - (2/3)^4],  4 | 6 -> Lighter[Lighter[Red]]}

EdgeStyle -> {_ -> Blue,   1\[DirectedEdge] 6 | 6\[DirectedEdge] 9 -> Red}