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