Is your feature request related to a use case or problem? Please describe.
Both the string and repr operators of SingleQubitCliffrodGate fall to its parent class which gives a confusing representaiton e.g.

>>> import cirq
>>> repr(cirq.ops.SingleQubitCliffordGate.X)
"cirq.CliffordGate.from_clifford_tableau(cirq.CliffordTableau(1,rs=np.array([False, True], dtype=np.dtype('bool')), xs=np.array([[True], [False]], dtype=np.dtype('bool')),zs=np.array([[False], [True]], dtype=np.dtype('bool')), initial_state=0))"
>>> str(cirq.ops.SingleQubitCliffordGate.X)
"cirq.CliffordGate.from_clifford_tableau(cirq.CliffordTableau(1,rs=np.array([False, True], dtype=np.dtype('bool')), xs=np.array([[True], [False]], dtype=np.dtype('bool')),zs=np.array([[False], [True]], dtype=np.dtype('bool')), initial_state=0))"

Describe the solution you'd like
the representation should be simpler. For example for cirq.ops.SingleQubitCliffordGate.X it should be
cirq.ops.SingleQubitCliffordGate(_clifford_tableau=cirq.CliffordTableau(1, xs=np.array([[True], [False]]), zs=np.array([[False], [True]])))

What is the urgency from your perspective for this issue? Is it blocking important work?
P3 - I'm not really blocked by it, it is an idea I'd like to discuss / suggestion based on principle