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