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