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