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