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