[plt-scheme] How to display constructor form in PrettyBig

How do I get PrettyBig or #lang scheme to display structures using the complete constructor form the way Beginning Student does?

I want to do this:
(define-struct node (value left right))
(make-node 10 (make-node 5 empty empty) empty)

and have it display as:
(make-node 10 (make-node 5 empty empty) empty)

instead of:
(make-node ...)

I have tried (require syntax/struct) and (require syntax/to-string) to no avail.

Thanks!

-B