pic of the sway bar setup, although this is a different bar I have used this pic because it is easy to point you i the right direction.
The right hand end of the blue bar shows the connector or drop link, it is this drop link which needs lubricating. If you look carefully you willsee the rubber which needs to be pulled back and then use a staightforward spray grease, mostof thse come with a small straw attachment to make it easier to direct the spray right inside the rubber.
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Here you go. The bit that is vertical at the end of the blue bar. You can't miss it when you look underneath really.