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