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