I'm not sure what you mean by "derive". For a more mathematical and geometric description of the super Poincaré group in general dimension you could check out - Freed, [*Lectures on field theory and supersymmetry*][1] (see Lecture 6); - Freed, *Five lectures on supersymmetry*, AMS 1999 (see Lecture 3); - Deligne and Freed, [*Supersolutions* [arXiv:hep-th/9901094]][3] (see Section 1.1), which can also be found in [*Quantum fields and strings: a course for mathematicians*][4]; and for the 4d case - Costello, e.g. [[arXiv:1401.2676]][2] (see Section 1.1). [1]: https://www.ma.utexas.edu/users/dafr/pcmi.pdf [2]: https://arxiv.org/abs/1401.2676 [3]: http://arxiv.org/abs/hep-th/9901094 [4]: http://www.math.ias.edu/qft