At this time digirig store doesn’t offer premade cables for this transceiver. It appears to use 7 pin jack with the following pinout:
It is quite trivial to make a homebrew cable. Typically I recommend sourcing an inexpensive speaker/mic and salvaging connector and wiring from it. The build then consists of just adding 3.5mm TRRS jack for the Digirig side and avoids potentially intricate soldering project on the transceiver end. In this case, however, I couldn’t find any cheap speaker/mic listings so a build from scratch may be more economical.
For reference, the pinout on Digirig’s side (rev 1.6 or later) looks like this: