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