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