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