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