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