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