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