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