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