One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(6,13)(7,14)(8,20)(9,25)(10,29)(11,32)(15,45)(16,50)(17,54)(18,57)(19,39)(21,62)(22,66)(23,69)(24,44)(26,73)(27,76)(28,61)(30,78)(31,72)(33,77)(34,35)(36,46)(37,51)(38,55)(40,41)(42,63)(43,67)(47,102)(48,105)(49,98)(52,110)(53,108)(56,112)(58,59)(60,74)(64,121)(65,119)(68,122)(70,71)(75,124)(79,96)(80,95)(81,114)(82,85)(83,111)(84,113)(86,125)(87,101)(88,109)(89,118)(90,117)(91,93)(92,123)(94,120)(97,103)(99,107)(100,106)(104,131)(115,116)(126,130)(127,129)(128,132)(5,6,14,35,8,15,40,50,25,46,62,96,59,80,22,37,10,17,42,83,26,47,89,106,70,99,117,105,76,113,67,57,32,55,69,114,74,103,123,110,78,125,121,131,124,132,120,112,77,109,122,129,115,126,65,87,31,53,93,98,61,82,24,39,12,19,44,85,28,49,91,108,72,101,119,130,116,127,68,88,33,56,94,128,75,104,64,86,30,52,92,97,60,81,23,38,11,18,43,84,27,48,90,107,71,100,118,102,73,111,63,54,29,51,66,95,58,79,21,36,9,16,41,45,20,34,7,13)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.