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