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