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Sirius uses 3 satellites in a geosynchronous orbit.
XM uses 2 satellites in geostationary orbit.

Anyone know where I can find pictorials of these orbit paths?

http://www.cashflowbusiness.net/siri_orbit.htm

Note that three times a day both active Sirius sats are at the
crossover point of the figure-8. There won't be much of any spatial
diversity for an hour or two around this these times, ie: the two
acitve sats won't be much better than just one.

The two-line orbital elements can be obtained from:
http://celestrak.com/NORAD/elements/other-comm.txt
You can then use a program like NOVA and have your own display of the
orbits with a display of time and direction to each satellite. (XM-3
is the first replacement sat for XM).