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