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