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