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