How to move diagonally with BodyVelocity * Camera LookVector/RightVector?

I'm making a game where you are a ball that can move. (Like Super Blocky Ball without the player inside of the ball) I can't figure out how to move it diagonally. I am using UiService.InputBegan to find out which keys the player is pressing. I'm making the ball move by which combination of keys they are pressing like... (AWD) is forward, (WSD) is right, (AD) is nothing and (A) is left... (Hope you understand...) This is how I am moving it.

local speed = 10

BodyVelocity.Velocity = Vector3.new(speed, 0, speed) * Camera.CFrame.LookVector

If you want me to post my hole script, tell me in the comments!

I found out how to do it! You just have to add up the lookVector and the rightVector

if A and S then
	BodyVelocity.Velocity = (camera.CFrame.RightVector*-speed)+(camera.CFrame.LookVector*-speed)
end