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