I just found this today, ACT has marked Graphic Designer as Closed on their list. ACT was unfortunately the only state offering sponsorship to graphic designers.
On contacting the website this is what they told me "The status’ for some occupations have been changed with effect from 1 July, this included Graphic Designer ANZSCO 232411 which is now a ‘closed’ occupation. The new list should be available on our website in August. Graphic Designer ANZSCO 232411 will stay a ‘closed’ occupation on the new list."