Perhaps the QPA function AlgebraAsQuiverAlgebra
can be used to obtain what you want?
I tested the following small example:
LoadPackage("qpa");
p := 3;
K := GF(p);
G := CyclicGroup(p);
KG := GroupRing(K, G);
A := AlgebraAsQuiverAlgebra(KG)[1];
R := RelationsOfAlgebra(A);