This claim is misleading and exaggerates what actually happened. There is no credible evidence that Donald Trump personally used presidential power to have James Comey arrested. What has been reported is that the U.S. Justice Department indicted Comey over a social media post that prosecutors interpreted as a possible threat, not that Trump directly ordered an arrest.
According to Reuters, Comey was charged by federal prosecutors related to an Instagram post and the case is being handled through the legal system: Read Reuters coverage
Additional reporting shows that Comey appeared in court after the indictment and was released, which is very different from being suddenly arrested by presidential command: Read follow-up report
Overall, the post you linked doesn’t provide evidence and misrepresents a legal process as a direct action by the president. While the case itself is controversial and debated, it is not accurate to describe it as Trump personally ordering an arrest.