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