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