The quick answer might be to look up the CV of a CERN researcher...
From outside physics, when compiling institutional publication lists, I've occasionally dealt with a 100+ author entry (often a major report rather than a paper, but the same problem holds). As our motive for listing this is to note the local author(s), it's a similar situation to the CV.
In this case, I tend to do something like:
Able, J., Anderson, M., Archer, C., [and 78 others, including Smith, Q.] (2015) A very tedious paper, J. Irrep. Res. 243(54)
or
Able, J., Anderson, M., Archer, C., [et al, including Smith, Q.] (2015) A very tedious paper, J. Irrep. Res. 243(54)
where Q. Smith is the local author we care about. It's probably not a very theoretically sound citation style, but it seems to work!