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