Have done this in the past lots of times with N channel.
Just want to make sure im thinking about this correctly for a p channel

Is it done the same way?

The cathode of the zener on the gate and the annode on the source?
Its a high side P channel switch.

Which makes me think i want the cathode of the zener on the gate and the anode on the drain?
can someone confirm

 

Since you can apply either polarity voltage to the gate-source, you'd need back-to-back zener diodes to offer robust protection.

This is how ON Semiconductor did it for NTA4151P:

 

The cathode of the zener on the gate and the annode on the source?

Since the P-MOSFET is reverse polarity from an N-MOSFET with a negative Vgs to turn it on, you put the Zener anode on the gate and cathode on the source (t's the gate-source voltage that's of concern).
You don't need back-to-back Zeners, since a plus gate-source voltage will just cause forward conduction in the Zener, as it now looks like a forward-biased diode.