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