I would prepare a short talk (a few minutes), as even if they don't want you to do a Powerpoint presentation, they might ask you to give an overview of your PhD at the start of the viva. Not all examiners do this, some like to jump straight in with their questions, but it's good to have something prepared just in case, so you can get off to a confident start.
I went through my thesis making sure I understood all the examples from the literature I'd mentioned, and making sure I could clearly explain everything I'd done and the results I'd got, and that I could justify all the decisions I'd made (including experiments and analyses I'd decided NOT to do). I found a few minor mistakes so I noted these down so that if the examiners mentioned them (they didn't in the end!) I would be able to say I was aware of them and what the correction should be.
I found the questions were generally very specific to my work, so not sure lists of generic 'viva questions' would have been particularly helpful in predicting what they'd ask, but there's no harm having a look through such lists to get you thinking critically about your thesis and how someone else might view it.