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