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