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