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