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