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