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