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