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