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