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