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)(17,18,23,27)(19,24,30,28)(20,22,26,32)(21,31,29,25)(33,34,40,37)(35,41,38,47)(36,45,44,42)(39,43,46,48)(1,3)(2,8)(4,12)(5,13)(6,11)(7,14)(9,10)(15,16)(17,18,23,27)(19,28,30,24)(20,22,26,32)(21,25,29,31)(33,35,40,38)(34,41,37,47)(36,39,44,46)(42,48,45,43)(17,19,23,30)(18,24,27,28)(20,29,26,21)(22,25,32,31)(33,36)(34,42)(35,39)(37,45)(38,46)(40,44)(41,48)(43,47)(1,4,7,13)(2,9,6,15)(3,12,14,5)(8,10,11,16)(17,20)(18,22)(19,29)(21,30)(23,26)(24,25)(27,32)(28,31)(33,37,40,34)(35,41,38,47)(36,45,44,42)(39,48,46,43)(1,5,7,12)(2,10,6,16)(3,13,14,4)(8,9,11,15)(17,21,23,29)(18,25,27,31)(19,20,30,26)(22,24,32,28)(33,38,40,35)(34,41,37,47)(36,46,44,39)(42,48,45,43)(1,6,7,2)(3,11,14,8)(4,9,13,15)(5,16,12,10)(17,22)(18,26)(19,25)(20,27)(21,24)(23,32)(28,29)(30,31)(33,39,40,46)(34,43,37,48)(35,44,38,36)(41,42,47,45)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.