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