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