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