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