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