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