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