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