One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,11)(6,8)(7,9)(10,12)(13,16)(14,15)(17,18)(19,24)(20,26)(21,25)(22,27)(23,28)(29,30)(31,32)(33,34,40,44)(35,45,39,41)(36,47,46,42)(37,48,43,38)(1,3)(2,5)(4,9)(6,10)(7,11)(8,13)(12,15)(14,16)(17,19,23,21)(18,24,28,25)(20,31,27,29)(22,30,26,32)(33,35,40,39)(34,41,44,45)(36,43,46,37)(38,47,48,42)(1,4,7,5)(2,3,9,11)(6,12,14,13)(8,10,15,16)(17,19,23,21)(18,25,28,24)(20,29,27,31)(22,30,26,32)(33,36)(34,42)(35,37)(38,45)(39,43)(40,46)(41,48)(44,47)(1,5,7,4)(2,3,9,11)(6,13,14,12)(8,10,15,16)(17,20,23,27)(18,26,28,22)(19,29,21,31)(24,30,25,32)(33,37,40,43)(34,38,44,48)(35,46,39,36)(41,42,45,47)(1,6,7,14)(2,8,9,15)(3,10,11,16)(4,12,5,13)(17,21,23,19)(18,24,28,25)(20,31,27,29)(22,32,26,30)(33,38)(34,43)(35,47)(36,45)(37,44)(39,42)(40,48)(41,46)(1,3)(2,4)(5,9)(6,10)(7,11)(8,12)(13,15)(14,16)(17,22,23,26)(18,27,28,20)(19,30,21,32)(24,29,25,31)(33,39,40,35)(34,41,44,45)(36,43,46,37)(38,42,48,47)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.