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