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