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