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