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