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