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