There is a fairly simple way to make adjustments to table and figure captions, e.g. to make the “Figure” bold or change the separator between “Figure X” and the actual caption:
\captionsetup[figure]{labelfont={it},name={Figure},labelsep=colon}
\captionsetup[table]{labelfont={it},name={Table},labelsep=colon}
Other ways to customise your captions can be found in the documentation of the caption package.