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