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