Grouping a base64->buffer hex string by bytes in Javascript?

I’m trying to take a Base64 string, convert it to a hex string and group the output by bytes.

I’d like the output of console.log(bufferString) to be:

03 67 00 cf 04 68 61 00 ff 01 2d

But I’m stuck with this output:

036700cf04686100ff012d

What I’ve got so far…

let request = {
    "PayloadData": "A2cAzwRoYQD/AS0=",
    "FPort": 10
  }

let buffer = Buffer.from(request.PayloadData, 'base64');
let bufferString = buffer.toString('hex');

console.log(bufferString)