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