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