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