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