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