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