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