When creating an EnterpriseSCHEDULE Job select the "Submit" property page and set the "Command shell" to Expect. Then import the Expect Script into the Commands area of the Job.
See Also
Appendix C - Using expect with EnterpriseSCHEDULE
Using expect’s record feature to capture an interactive session
Common edit changes made to Autoexpect recorded scripts
What to remove from the expect line?
Breaking expect Jobs into reusable pieces using include within a Job
Creating Expect prototype Job Templates