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