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