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