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