A tutorial can be found here.
First you need to install/build the latest version of doxygen, here you have a tutorial.
yum install flex bison
wget http://doxygen.nl/files/doxygen-1.8.15.src.tar.gz
tar -xf doxygen-1.8.15.src.tar.gz
mkdir -v build &&
cd       build &&
cmake -G "Unix Makefiles"         \
      -DCMAKE_BUILD_TYPE=Release  \
      -DCMAKE_INSTALL_PREFIX=/usr \
      -Wno-dev .. &&
make -j16
make install
Notice: You will also need to install flex and bison, before building the doxygen binary.
Generate the documentation:
git clone git://github.com/mosra/m.css
cd m.css/documentation
# You may need sudo here
pip3 install jinja2 Pygments --user
Create a Doxyfile-mcss alongside your doxygen.cfg file with this content:
@INCLUDE                = doxygen.cfg
GENERATE_HTML           = NO
GENERATE_XML            = YES
XML_PROGRAMLISTING      = NO
Generate the documentation:
./doxygen.py path/to/your/Doxyfile-mcss
Then go in the output folder(the one set in the doxygen.cfg) and open index.html.
Note: Check the unsuported features here. Ex: Class hierarchy graphs are ignored..
