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