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)(19,29)(20,32)(21,24)(22,38)(23,26)(25,34)(27,31)(28,39)(30,43)(33,45)(35,42)(36,44)(37,41)(40,48)(46,47)(1,3)(2,6)(4,7)(5,8)(9,11)(10,12)(13,15)(14,16)(17,19,22,21,23,31,39,37)(18,24,28,29,26,41,38,27)(20,33,36,48,34,30,46,35)(25,42,44,43,32,40,47,45)(1,4,5,2)(3,7,8,6)(10,15)(11,16)(17,20)(18,25)(19,30)(21,35)(22,36)(23,34)(24,40)(26,32)(27,43)(28,44)(29,45)(31,33)(37,48)(38,47)(39,46)(41,42)(3,8)(6,7)(9,12,14,13)(10,11,15,16)(18,26)(19,31)(20,34)(21,37)(28,38)(36,46)(40,42)(43,45)(9,13,14,12)(10,11,15,16)(17,21,22,31,23,37,39,19)(18,27,28,24,26,29,38,41)(20,35,36,33,34,48,46,30)(25,43,44,40,32,45,47,42)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.