One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9)(4,6)(5,13)(7,11)(8,12)(10,15)(14,16)(17,18,23,19)(20,22,27,24)(21,25,30,26)(28,31,29,32)(2,6)(7,14)(8,13)(9,15)(17,19,22,27,23,18,24,20)(21,26,31,29,30,25,32,28)(1,3,5,11,4,10,12,16)(2,7,8,9,6,14,13,15)(17,20,22,19,23,27,24,18)(21,29,31,25,30,28,32,26)(3,10)(7,14)(9,15)(11,16)(17,21)(18,25)(19,26)(20,28)(22,31)(23,30)(24,32)(27,29) involution — undirected(21,30)(25,26)(28,29)(31,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.