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