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