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