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