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