inigo:tmp> script
Script started, file is typescript
inigo:tmp> git --no-pager log --pretty=format:"" --graph
#
# lots of colour output
# 
inigo:tmp> exit
exit
Script done, file is typescript
# http://www.pixelbeat.org/scripts/ansi2html.sh
inigo:tmp> cat typescript  | ansi2html.sh > typescript.html

# OR using aha (brew install aha)
inigo:tmp> cat typescript  | aha --black > typescript.html