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