One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,11)(3,13,17,27)(4,18)(5,21)(6,12,25,10)(8,24,28,16)(9,23)(14,29)(15,31)(19,32)(20,22)(26,30)(1,3,6,24,7,17,25,16)(2,8,12,13,11,28,10,27)(4,19,20,31,21,30,9,14)(5,15,23,26,18,29,22,32)(1,4,6,20,7,21,25,9)(2,5,12,23,11,18,10,22)(3,14,24,19,17,31,16,30)(8,26,13,29,28,32,27,15)(1,5)(2,9)(3,15)(4,12)(6,23)(7,18)(8,14)(10,21)(11,20)(13,19)(16,32)(17,29)(22,25)(24,26)(27,30)(28,31) 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.