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