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