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