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