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