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