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