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