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