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