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