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)(19,26,25,22)(20,28,30,24)(27,29,31,32)(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)(17,19,23,25)(18,22,21,26)(20,27,30,31)(24,29,28,32)(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)(18,24,21,28)(19,27,25,31)(22,29,26,32)(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)(18,24)(19,27)(21,28)(22,29)(23,30)(25,31)(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)(19,22,25,26)(20,28,30,24)(27,29,31,32)(33,37,39,34)(35,41,36,40)(38,42,46,45)(43,47,44,48)(1,4,5,13)(2,8,6,12)(3,10,11,16)(7,14,9,15)(17,22)(18,25)(19,21)(20,29)(23,26)(24,31)(27,28)(30,32)(33,38,39,46)(34,42,37,45)(35,43,36,44)(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.