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