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