The Sims graph is a distance-transitive graph on 352 vertices (Brouwer et al. 1989, p. 370).
Sims Graph
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References
Brouwer, A. E.; Cohen, A. M.; and Neumaier, A. Distance Regular Graphs. New York: Springer-Verlag, p. 370, 1989.Referenced on Wolfram|Alpha
Sims GraphCite this as:
Weisstein, Eric W. "Sims Graph." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SimsGraph.html