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