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