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