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