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