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