How to use 3.3V gate MOSFET to drive two loads with common ground?
It's a pity they are not common anode because then it would be easily done with two ground referenced n ch mosfets. 

To do it with a common cathode circuit will work with two p ch mosfets but, for each mosfet you'll need a transistor to pull the gate down to 0v. This is  because a gpio pin that is high will still keep the p ch mosfet turned on.

Basically an n channel fet and pull-up resistor can fully activate the p channel fet's gate.

There is another option of a zener level shifter but component values and selection may be tricky with only a 3.3 volt gpio drive signal. Still do able though.

Using bjts can work too.