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