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