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