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