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