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