Create two duplicate circuits, one to operate with ø1 active, the other to operate with ø2 active. If you can do so in one window then all the better.
Each simulation depicts a stage of operation.
However you must determine whether there's a mistake about the first image. As printed, Ø1 closes switches so the capacitor charges from Vdd while the rest of the circuit is disconnected.
Then Ø2 occurs, connecting the capacitor so it powers the rest of the circuit. I don't understand whether: (a) this is a workaround so the layout contains at least one ground icon (because some simulators require it), or (b) whether it was intended instead to depict a reversal of supply polarity, rather than a non-changing supply polarity?