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)(11,14)(12,15)(13,16)(17,18,23,28)(19,29,33,44)(20,34,36,25)(21,26,37,43)(22,38,35,27)(24,39,42,32)(30,46,47,41)(31,45,48,40)(11,12)(14,15)(17,19)(18,24)(20,30)(21,31)(22,39)(23,33)(25,40)(26,41)(27,44)(28,42)(29,38)(32,35)(34,45)(36,47)(37,48)(43,46) involution — undirected(2,5)(6,8)(9,11,13,12)(10,14,16,15)(17,20)(18,25)(19,30)(21,35)(22,37)(23,36)(24,40)(26,38)(27,43)(28,34)(29,41)(31,32)(33,47)(39,48)(42,45)(44,46)(9,12,13,11)(10,15,16,14)(17,21,23,37)(18,26,28,43)(19,31,33,48)(20,35,36,22)(24,41,42,46)(25,38,34,27)(29,45,44,40)(30,32,47,39)(1,3,4,7)(2,6,5,8)(10,16)(14,15)(20,36)(21,37)(25,34)(26,43)(30,47)(31,48)(40,45)(41,46)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.