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