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