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