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