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