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