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