One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6,10,11)(7,9,8,12)(13,14)(15,18)(16,17)(19,20)(21,22,25,26)(23,27,29,30)(24,28,33,34)(31,35,32,36)(5,7,10,8)(6,9,11,12)(13,15,17,20)(14,18,16,19)(22,26)(23,29)(28,34)(31,32)(6,11)(7,8)(14,16)(18,19)(21,23)(22,27)(24,32)(25,29)(26,30)(28,36)(31,33)(34,35) involution — undirected(1,2,3,4)(5,8,10,7)(6,9,11,12)(13,16,17,14)(15,19,20,18)(21,22)(23,30)(24,28)(25,26)(27,29)(31,36)(32,35)(33,34)(5,9)(6,7)(8,11)(10,12)(13,15)(14,18)(16,19)(17,20)(21,24,25,33)(22,28,26,34)(23,31,29,32)(27,35,30,36)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.