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