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