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