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