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